Populates and returns the destination mutable map with key-value pairs,
where key is provided by the keySelector function applied to each element of the given collection
and value is the element itself.

Populates and returns the destination mutable map with key-value pairs,
where key is provided by the keySelector function and
and value is provided by the valueTransform function applied to elements of the given collection.

Populates and returns the destination mutable map with key-value pairs for each element of the given collection,
where key is the element itself and value is provided by the valueSelector function applied to that key.

Groups elements of the original collection by the key returned by the given keySelector function
applied to each element and returns a map where each group key is associated with a list of corresponding elements.

Groups values returned by the valueTransform function applied to each element of the original collection
by the key returned by the given keySelector function applied to the element
and returns a map where each group key is associated with a list of corresponding values.

Groups elements of the original collection by the key returned by the given keySelector function
applied to each element and puts to the destination map each group key associated with a list of corresponding elements.

Groups values returned by the valueTransform function applied to each element of the original collection
by the key returned by the given keySelector function applied to the element
and puts to the destination map each group key associated with a list of corresponding values.

Returns a list of values built from the elements of this collection and the other array with the same index
using the provided transform function applied to each pair of elements.
The returned list has length of the shortest collection.

Returns a list of values built from the elements of this collection and the other collection with the same index
using the provided transform function applied to each pair of elements.
The returned list has length of the shortest collection.